US5164417AExpiredUtility

Phosphate ester flame retardant mixture and foamed resins containing same

81
Assignee: ALBRIGHT & WILSON AMERICASPriority: Jun 1, 1990Filed: Oct 10, 1991Granted: Nov 17, 1992
Est. expiryJun 1, 2010(expired)· nominal 20-yr term from priority
Inventors:James J. Anderson
C08K 5/523C08K 5/521
81
PatentIndex Score
26
Cited by
3
References
22
Claims

Abstract

A flame retardant composition, for use in flexible urethane foams, which contains about 5 to 95% of tris(monochloroalkyl, dichloroalkyl or mixtures thereof) phosphate and the remainder is a phenyl phosphate ester which is an alkylated triphenyl phosphate having an approximate average formula (RxArO)3PO wherein x ranges from 1 to 2, each R is individually selected from the group consisting of hydrogen, C1-C4 alkyl and Ar is phenyl. Flexible urethane foam compositions containing 8 to 14 parts per 100 parts polyol of this composition have sufficient flame retardant properties to meet the Cal 117 test standard.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A composition consisting essentially of about 5 to 95% of tris (monochloroalkyl, dichloroalkyl or a mixture thereof) phosphate and the remainder is   a phenyl phosphate ester which is an alkylated triphenyl phosphate having an approximate average formula (R x  ArO) 3  PO wherein x ranges from 1 to 2, each R is individually selected from the group consisting of hydrogen, C 1  -C 4  alkyl and Ar is phenyl.   
     
     
       2. The composition of claim 1, consisting essentially of about 25 to about 75% said trisphosphate and the remainder said alkylated triphenyl phosphate. 
     
     
       3. The composition of claim 1, consisting essentially of about 50 to 75% said trisphosphate and the remainder said alkylated triphenyl phosphate. 
     
     
       4. The composition of claim 1, consisting essentially of about 30-40% said alkylated triphenyl phosphate and about 60-70% said trisphosphate. 
     
     
       5. The composition of claim 1, consisting essentially of about 50% said trisphosphate and about 50% said alkylated triphenyl phosphate. 
     
     
       6. The composition of claim 1, consisting essentially of 5% said trisphosphate and the remainder said alkylated triphenyl phosphate. 
     
     
       7. In a flexible urethane foam composition of the type being formed by mixing isocyanates and polyether or polyester polyols along with various surfactants, water, auxiliary blowing agents and catalysts, and reacting the mixture; the improvement comprising: 8 to 14 parts per 100 parts polyol of the composition of claim 1.   
     
     
       8. In a flexible urethane foam composition of the type being formed by mixing isocyanates and polyether or polyester polyols along with various surfactants, water, auxiliary blowing agents and catalysts, and reacting the mixture; the improvement comprising: 8 to 14 parts per 100 parts polyol of the composition of claim 3.   
     
     
       9. In a flexible urethane foam composition of the type being formed by mixing isocyanates and polyether or polyester polyols along with various surfactants, water, auxiliary blowing agents and catalysts, and reacting the mixture; the improvement comprising: 8 to 14 parts per 100 parts polyol of the composition of claim 4.   
     
     
       10. In a flexible urethane foam composition of the type being formed by mixing isocyanates and polyether or polyester polyols along with various surfactants, water, auxiliary blowing agents and catalysts, and reacting the mixture; the improvement comprising: 10 to 12 parts per 100 parts polyol of the composition of claim 1.   
     
     
       11. In a flexible urethane foam composition of the type being formed by mixing isocyanates and polyether or polyester polyols along with various surfactants, water, auxiliary blowing agents and catalysts, and reacting the mixture; the improvement comprising: 10 to 12 parts per 100 parts polyol of the composition of claim 2.   
     
     
       12. In a flexible urethane foam composition of the type being formed by mixing isocyanates and polyether or polyester polyols along with various surfactants, water, auxiliary blowing agents and catalysts, and reacting the mixture; the improvement comprising: 10 to 12 parts per 100 parts polyol of the composition of claim 3.   
     
     
       13. In a flexible urethane foam composition of the type being formed by mixing isocyanates and polyether or polyester polyols along with various surfactants, water, auxiliary blowing agents and catalysts, and reacting the mixture; the improvement comprising: 10 to 12 parts per 100 parts polyol of the composition of claim 4.   
     
     
       14. In a flexible urethane foam composition of the type being formed by mixing isocyanates and polyether or polyester polyols along with various surfactants, water, auxiliary blowing agents and catalysts, and reacting the mixture; the improvement comprising: 8 to 14 parts per 100 parts polyol of the composition of claim 6.   
     
     
       15. In a flexible urethane foam composition of the type being formed by mixing isocyanates and polyether or polyester polyols along with various surfactants, water, auxiliary blowing agents and catalysts, and reacting the mixture; the improvement comprising: 8 to 14 parts per 100 parts polyol of a total of a tris(monochloroalkyl, dichloroalkyl or mixture thereof) phosphate and a phenyl phosphate ester which is an alkylated triphenyl phosphate having an approximate average formula (R x  ArO) 3  PO wherein x ranges from 1 to 2, each R is individually selected from the group consisting of hydrogen, C 1  -C 4  alkyl and Ar is phenyl;   said trisphosphate and said alkylated triphenyl phosphate being present in a ratio effective to impart flame retardant properties to said foam.   
     
     
       16. The composition of claim 15, wherein the said trisphosphate to said alkylated triphenyl phosphate ratio by weight percent is 5 to 95 said trisphosphate to 5 to 95 said alkylated triphenyl phosphate. 
     
     
       17. The composition of claim 16, wherein the total of said trisphosphate and said alkylated triphenyl phosphate is 10 to 12 parts. 
     
     
       18. The composition of claim 16, wherein the ratio is 25 to 50 said alkylated triphenyl phosphate and 75 to 50 said trisphosphate. 
     
     
       19. The composition of claim 16, wherein the ratio is 30 to 40 said alkylated triphenyl phosphate and 60 to 70 said trisphosphate. 
     
     
       20. The composition of claim 1, wherein said trisphosphate is TDCP and said alkylated triphenylphosphate is PAP. 
     
     
       21. The composition of claim 7, wherein said trisphosphate is TDCP and said alkylated triphenylphosphate is PAP. 
     
     
       22. The composition of claim 15, wherein said trisphosphate is TDCP and said alkylated triphenylphosphate is PAP.

Join the waitlist — get patent alerts

Track US5164417A — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.